Flutter Execution failed for task ':app:processDebugManifest'

Question

I am new with Flutter, at first my projects were running good but suddenly I started getting this problem: FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':app:processDebugMainManifest'.

Unable to make field private final java.lang.String java.io.File.path accessible: module java.base does not "opens java.io" to unnamed module @1f05eb0a Now whenever I run project or even I tried to make new project I get error like this, I have even tried the available answers related to this query but failed to debug it.. here's my flutter version:

PS C:\Work\t_post> flutter doctor -v
[√] Flutter (Channel stable, 2.2.2, on Microsoft Windows [Version 10.0.19042.1052], locale en-US)
    • Flutter version 2.2.2 at C:\Work\flutter
    • Framework revision d79295af24 (2 weeks ago), 2021-06-11 08:56:01 -0700
    • Engine revision 91c9fc8fe0
    • Dart version 2.13.3

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at C:\Users\User\AppData\Local\Android\sdk
    • Platform android-30, build-tools 30.0.3
    • Java binary at: C:\Program Files\Java\jdk-16.0.1\bin\java
    • Java version Java(TM) SE Runtime Environment (build 16.0.1+9-24)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[!] Android Studio (not installed)
    • Android Studio not found; download from https://developer.android.com/studio/index.html
      (or visit https://flutter.dev/docs/get-started/install/windows#android-setup for detailed instructions).

[√] VS Code (version 1.57.1)
    • VS Code at C:\Users\User\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.23.0

[√] Connected device (3 available)
    • sdk gphone x86 arm (mobile) • emulator-5554 • android-x86    • Android 11 (API 30) (emulator)
    • Chrome (web)                • chrome        • web-javascript • Google Chrome 91.0.4472.124
    • Edge (web)                  • edge          • web-javascript • Microsoft Edge 91.0.864.54

! Doctor found issues in 1 category.

And here's my pubspec.yaml file:

name: t_post
description: A new Flutter project.

# The following line prevents the package from being accidentally published to
# pub.dev using `pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev


version: 1.0.0+1

environment:
  sdk: ">=2.12.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter


  cupertino_icons: ^1.0.2

dev_dependencies:
  flutter_test:
    sdk: flutter

# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec

# The following section is specific to Flutter.
flutter:

  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true

Answer 1

Just downgrading the JDK version from 16 to 15 worked for me.

Answer 2

Delete Android folder on the flutter project, then run below command in terminal.

flutter create --platforms=android .

This will fix the issue